code: def get_parser():
      parser = argparse.ArgumentParser(
          description="Compute MFCC features from wav.",
          formatter_class=argparse.ArgumentDefaultsHelpFormatter,
      )
      parser.add_argument(
          "--sample_rate",
          type=int,
          default=16000,
          help="Sampling frequency",
      )
      parser.add_argument(
          "--upper_frequency_limit",
          type=float,
          default=0,
          help="Maxinum frequency",
      )
      parser.add_argument(
          "--lower_frequency_limit",
          type=float,
          default=20,
          help="Minimum frequency",
      )
      parser.add_argument(
          "--filterbank_channel_count",
          type=float,
          default=23,
          help="Order of fbank",
      )
      parser.add_argument(
          "--window_length",
          type=float,
          default=0.025,
          help="Length of a frame",
      )
      parser.add_argument(
          "--frame_length",
          type=float,
          default=0.010,
          help="Hop size of window",
      )
      parser.add_argument(
          "--output_type",
          type=int,
          default=1,
          help="1 for power spectrum, 2 for log-power spectrum.",
      )
      parser.add_argument(
          "--window_type",
          type=str,
          default="povey",
          help='Type of window ("hamm"|"hann"|"povey"|"rect"|"blac"|"tria").',
      )
      parser.add_argument(
          "--snip_edges",
          type=bool,
          default=True,
          help="The last frame (shorter than window_length) will not be cutoff.",
      )
      parser.add_argument(
          "--raw_energy",
          type=int,
          default=1,
          help="Compute frame energy before preemphasis and windowing.",
      )
      parser.add_argument(
          "--preeph_coeff",
          type=float,
          default=0.97,
          help="Coefficient for use in frame-signal preemphasis.",
      )
      parser.add_argument(
          "--remove_dc_offset",
          type=bool,
          default=True,
          help=" Subtract mean from waveform on each frame.",
      )
      parser.add_argument(
          "--is_fbank",
          type=bool,
          default=True,
          help="Compute power spetrum without frame energy.",
      )
      parser.add_argument(
          "--dither",
          type=float,
          default=0.0,
          help="Dithering constant (0.0 means no dither).",
      )
      parser.add_argument(
          "--cepstral_lifter",
          type=float,
          default=22,
          help="Constant that controls scaling of MFCCs.",
      )
      parser.add_argument(
          "--coefficient_count",
          type=int,
          default=13,
          help="Number of cepstra in MFCC computation.",
      )
      parser.add_argument(
          "--use_energy",
          type=bool,
          default=True,
          help="Use energy (not C0) in MFCC computation.",
      )
      parser.add_argument(
          "--write_num_frames",
          type=str,
          help="Specify wspecifer for utt2num_frames",
      )
      parser.add_argument(
          "--compress",
          type=strtobool,
          default=False,
          help="Save data in compressed format",
      )
      parser.add_argument(
          "--compression_method",
          type=int,
          default=2,
          help="Specify the method of compression",
      )
      parser.add_argument(
          "--verbose", "-V", default=0, type=int, help="Verbose option"
      )
      parser.add_argument(
          "--segments",
          type=str,
          help="segments-file format: each line is either"
          "<segment-id> <recording-id> <start-time> <end-time>"
          "e.g. call-861225-A-0050-0065 call-861225-A 5.0 6.5",
      )
      parser.add_argument("rspecifier", type=str, help="WAV scp file")
      parser.add_argument(
          "wspecifier", type=str, help="Writer specifier"
      )
      return parser
  
file_path: delta/egs/conll2003/seq_label/v1/utils/speech/compute_mfcc_feats.py
imports: import delta.compat
  import argparse
  from distutils.util import strtobool
  import kaldiio
  import numpy
  import os
  from delta.data.frontend.mfcc import Mfcc
  from espnet.utils.cli_writers import KaldiWriter
label_desc: Use image node_id 1 for calling a global function with example usage: get_parser() and returns: parser